A Modified Selective Mapping with PAPR Reduction and Error Correction in OFDM Systems

This paper proposed a PAPR reduction method for BPSK OFDM systems and 16-QAM OFDM systems respectively. The strategy of the algorithms is to use a correction subcode for error control and a scrambling subcode for PAPR control. The transmitted OFDM sequence is selected with minimum PAPR from a number...

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Bibliographic Details
Main Authors: Houshou Chen, Hsinying Liang
Format: Conference Proceeding
Language:English
Subjects:
Binary phase shift keying
Block codes
Encoding
Error correction
Modulation coding
OFDM modulation
Partial transmit sequences
Peak to average power ratio
Quadrature amplitude modulation
Vectors
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Summary:This paper proposed a PAPR reduction method for BPSK OFDM systems and 16-QAM OFDM systems respectively. The strategy of the algorithms is to use a correction subcode for error control and a scrambling subcode for PAPR control. The transmitted OFDM sequence is selected with minimum PAPR from a number of candidates which form a coset of scrambling subcode for each codeword of correction subcode. In a BPSK OFDM system, the PAPR reduction is obtained by combining the SLM method with binary cyclic codes. In a 16-QAM OFDM system, the PAPR reduction is achieved by combining the SLM with block coded modulation. The received signal of the modified SLM can be decoded without the need of explicit side information and the proposed scheme achieves good PAPR reduction.
ISSN:1525-3511
1558-2612
DOI:10.1109/WCNC.2007.251